1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961fb7059b31c29ae150d54e2c115b5d7690b90409bcd52c7d3edafc6820f74e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faa730a1-afa1-4e2f-9069-44bfb400db3a.json and https://artists.proofprofile.net/proofs/artist/faa730a1-afa1-4e2f-9069-44bfb400db3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7a01854153a412d242633c832b935ca3aa7edfdf9a5ba8b5e7670a91aa2132. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7817964.
Healthy Eating, Healthy Body, Healthy Mind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bffa3a3d1709c6fcf265140bd3f4da7bdae20129a72c85bbcccee2b2e06bba6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7817965.
Indoor Workouts all the Way - a Tune to Exercise to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1460154d03c79f9bd714a29f431bf365c768a9e08ed921b7ee7b0ca5c91137a8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7817966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd50c8bfee99922d338ea26442d7375aa405c9c1942a3e11987806f20943a24. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7817970.
Feeling Productive - Jazz for Motivation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001a8dde7d32e056afebb18387f4dd0a77eb85e4ad37abcf1a642a50d0ad3cfb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7916879.
Self-Reflection - Soothing Sounds for Introspection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007bc42d8457a2bfded1a89e1b0afb388bb77c90cf6509334c20ef38f6030d59. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7916880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4104c5d3e9c963e51bdbc325df87c5a383ac449d801472166c81a5d23168a346. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7916886.
Instrumental Background Music for Working from Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd415d3f10992810a3973b3a0ebdae4bbf47d141982a4bca4427cd496361d8c5d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7916887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647b350c87eecd95fe78c0e0244a14f6a1b811e59a213307d6a6e4a0f3291237. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8445142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbf38d95de0ea6122199e4edc77ad6551c8fc59895999892941b57d79f4b41b. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2d5be8a4935f97b50767bfa72abde7c1c979bd9a59568d81ed2ae981e87788. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba1230661b6d88d1ae612bf7592621658f64671b18460bc61f6a8fa3d3ea738. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb574f1a13381480e1234f8e17f83d6e3d4475b2ec257f29a19ebeaac8d87ccd2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6110e85df33c06a3fd9945d0c9b75cd31e5d6192902ce17c2fc3c454118a9767. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3556333bc46210a5a9c52b7b8833f227e44f77a2601a365c8b4e29c6fb09dc17. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c10090ae73ea26519bad585182e454dd9cebeccc17d4767013749b85f0b63a. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1e4503902cd459f883437d0a6eaac0cb7799d09678397596423069e98f61df. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662869174176670aed88f592f7b8227ec59837282eaa769ca9918ad099fa0643. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9672351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ca39b8505c277cf651e02173f88d76a03021a28d24e1a89513accb541c111. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2312592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8cdf9cbd52ea6d71596a62038b500dae1b9feb8f299e69eeafc7ab1543004a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2369493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aa5af4b2647a586157cac3551fd3ceec7d3584f8cc1f15b279ff53e876c3a8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2311267.